The first useful version is the path a parent, member, trader or shopper can finish without calling someone.
On Autisme Rwanda that path is: understand the organisation, start screening, donate, or open WhatsApp. On Diamond Logistics it is: read the service, request a quote, or track a shipment. On Golden Fashion it is: browse, order, pay.
We still do planning. We do not confuse planning with a year of workshops. The Kigali team scopes users, the first release, hosting and who will update the content. Then we build in reviewable stages.
The part that usually fails is not the first launch. It is the month after, when DNS, backups, app-store accounts and a small content change all sit with nobody. LIGHTMGROUP keeps those with the same delivery team. That is why hosting, domains and support are in the estimate instead of appearing as a surprise.
If you are not sure what to build, WhatsApp the problem. If you already know the shape of the product, use the estimator. Either way, ask what happens to the system ninety days after it goes live.